Dynamic Video Frame Structure Selection for Coding Efficiency
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Solution Overview
Problem
Current video coding methods often rely on fixed or exhaustive combinations of frame types, which can be inefficient and fail to adapt dynamically to varying video coding scenarios, leading to suboptimal performance.
Innovation Solution
A method that determines a target video frame structure based on pre-set thresholds for B-frame numbers and conditions, allowing for dynamic switching among video frame structures to better match the current video coding scenario, thereby improving coding performance without traversing all possible combinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed combination of frame types is designated in advance, then the coding process is simple and fast, but the coding performance is suboptimal and cannot adapt to varying video scenarios
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed frame structure to a dynamic one. The video coding apparatus determines a target video frame structure based on the actual video content characteristics, allowing the frame structure to adapt dynamically to different video scenarios while maintaining coding efficiency through optimized selection rather than exhaustive search.
2Productivity
If all combinations of frame types are traversed to find the optimal combination, then the coding performance is optimized, but the computational complexity is high
Solution Approach 1:
The patent extracts only the necessary frame structure determination from the exhaustive search space. Instead of evaluating all possible frame type combinations, the apparatus extracts and evaluates only those frame structures that are relevant based on video content characteristics, significantly reducing computational complexity while maintaining optimal coding performance.
Solution Approach 2:
The patent applies partial action by performing frame structure determination only when necessary based on video content analysis, rather than always conducting exhaustive searches. The apparatus selectively determines target frame structures based on pre-set conditions and B-frame number thresholds, avoiding unnecessary computational overhead in scenarios where exhaustive search would not provide significant benefits.
3Adaptability or versatility
If the frame structure is determined dynamically based on video content, then the adaptability is improved, but the coding complexity increases
Solution Approach 1:
The patent applies parameter changes by using pre-set thresholds for B-frame numbers and pre-set conditions to control the dynamic frame structure determination process. By changing parameters such as B-frame counts and structural configurations based on video content characteristics, the system achieves adaptability while keeping the decision-making process manageable through parameter-based control rather than complex algorithms.
Data Source
AI summary
A method and apparatus for coding a video, device and medium are provided. An implementation of the method include: determining a first video frame structure and a second video frame structure based on a pre-set threshold for a B-frame number; determining a target video frame structure based on the first video frame structure, the second video frame structure, and a pre-set condition; and coding video frames in a to-be-coded video frame sequence according to the target video frame structure.